Home / 8,787.23-12,125.18-5,249.69

Finding the Fourth Proportional to 8,787.23, 12,125.18 and 5,249.69

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Solution

The fourth proportional to 8,787.23, 12,125.18 and 5,249.69 is: 7,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.23 : 12,125.18 = 5,249.69 : x
  2. Step 2: Convert to fraction form
    8,787.23/12,125.18 = 5,249.69/x
  3. Step 3: Cross multiply
    8,787.23x = 12,125.18 × 5,249.69
  4. Step 4: Simplify right side
    8,787.23x = 63,653,409.95
  5. Step 5: Solve for x
    x = 63,653,409.95/8,787.23
  6. Step 6: Final answer
    x = 7,243.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.